Nickelodeon All-Star Brawl 2

clear arcade with all 25 basegame characters.
grindy and boring.
to make it a bit faster jump off the map during the slime balloon and whack-a-bot minigames as it ends those quickly with no penalty.

Most important questions I have when starting this achievement was is there any restrictions? You may play on any difficulty you wish and use continues with absolutely 0 issues. I played one arcade on each difficulty and on the run where I was on the hardest I believe I restarted 4-5 times, it does not matter.

Since you need to do every character I would get used to checking their movesets and finding out which moves are your favorite. If you are bad with a character I would suggest doing the easiest difficulty as it will allow 5 respawns before needing to hit continue. While you may continue without it affecting your achievement it is important as using stocks during boss fights will not cause you to need to restart the boss fight where hitting continue will. Regardless I think luring your opponents near edges and spiking them downwards or sideways with a strong attack (usually holding B) is the fastest way to finish all of the fights. The bosses are especially weak to B, holding up and B, and other strong attacks. I can add more tips if needed, but this really should not be an issue since you can play on easy and get infinite lives essentially (I played on the medium difficulty normally just because I wanted to)

Characters 25 in total are needed, no dlc characters are needed (Will probably be more in future, but only Mr Krabs is available right now)
- SpongeBob
- Patrick
- Squidward
- Mecha Plankton
- El Tigre
- Rocko
- Jimmy Neutron
- Lucy Loud
- Angry Beavers
- Garfield
- Aang
- Korra
- Azula
- Raphael
- Donatello
- April
- Danny Phantom
- Ember
- Grandma Gertie
- Gerald
- Nigel
- Zim
- Jenny Wakeman
- Reptar
- Ren & Stimpy

This next portion is copied from another guide I wrote detailing the hardest difficulty in arcade, but I feel it is important to add the matchups to this guide as well. Enemies will be in parenthesis although make sure to look at the icon as some (mainly the TMNT characters will switch around in the 1v1 settings)

1v1 matches: The Ghost Zone (Danny Phantom), Techno Brawl (Raphael TMNT), Presenting: Nature (Nigel), Just Five More Minutes (Garfield), Wacky Grandma (Grandma Gertie), Attack of the Irken Empire (Zim), Oh Boy It's 3AM (Patrick), Ninja Training (Raphael TMNT), Hardcore Heavy Metal (Jenny), Clarinet Lessons (Squidward), Trip to the Spirit World (Korra or Aang), Pizza Night (Donatello or April), Time to Invent (Jimmy), Pinata Party (El Tigre), The Coolest Kid of the Neighborhood (Gerald), Culinary Masters (Ren and Stimpy), Rocko's Typical Tuesday (Rocko), Firebending Lessons (Azula), Breaking News! (April), Frycook Games (Spongebob), Earth Kingdom (Azula), Green Lizard (Reptar), Return of Sheldon (Plankton), Building a Dam (Angry Beavers), Ghostly Rock Show (Ember)

2v1 matches: Deep Sea Pirates (Garfield and Ember), Hillwood's Aquarium (Grandma Gertie and Gerald), Caped Costumes (El Tigre and Lucy Loud), Royal Guard (Nigel and Gerald), Dream Team (Gerald and Lucy Loud), Pizza Night (Donatello), Plaid Shirt Team (Rocko and Angry Beavers), Karate Team (Jimmy and Grandma Gertie), Cozy Sweater Team (Garfield and Nigel), Galactic Patrol (Ren & Stimpy and Angry Beavers), Secret Beret Club (Rocko and Squidward), Return of the Super Heroes (Patrick and Jimmy)

2v2 matches: Superheroes Unite with El Tigre (SpongeBob and Patrick), Crazy Hats Team with Nigel (El Tigre and Squidward), Krusty Krab's Employees with Patrick (Squidward and Spongebob), Metal Heads with Ember (Donatello and Raphael), Avatar Hunt with Azula (Aang and Korra)

3v1 match: Beaver party (3 angry beavers)

Set Stages
Stage 3: Bonus Minigame for popping slime balloons, you can play it for the other achievements or just wait out the timer it will not fail you.
Stage 5: Kaiju Battle (Big Reptar vs you and lil Reptar) Krusty Krab v Chum Bucket (Big Mecha Plankton v you and Squidward) These are normal fights just the big enemy will not fly as far away. To make up for this they struggle to recover so just try to get them off the ledges as quickly as possible.
Stage 7: Boss Battle: Shredder, King Jellyfish, Sartana De Los Muertos, Flying Dutchman
Stage 9: Bonus Minigame Whack-A-Bot, you can play if you want I just walk off the screen normally because that minigame is not v fun to me
Stage 11: This will ALWAYS be a boss fight against Vlad from Danny Phantom

Most important questions I have when starting this achievement was is there any restrictions? You may play on any difficulty you wish and use continues with absolutely 0 issues. I played one arcade on each difficulty and on the run where I was on the hardest I believe I restarted 4-5 times, it does not matter.

Since you need to do every character I would get used to checking their movesets and finding out which moves are your favorite. If you are bad with a character I would suggest doing the easiest difficulty as it will allow 5 respawns before needing to hit continue. While you may continue without it affecting your achievement it is important as using stocks during boss fights will not cause you to need to restart the boss fight where hitting continue will. Regardless I think luring your opponents near edges and spiking them downwards or sideways with a strong attack (usually holding B) is the fastest way to finish all of the fights. The bosses are especially weak to B, holding up and B, and other strong attacks. I can add more tips if needed, but this really should not be an issue since you can play on easy and get infinite lives essentially (I played on the medium difficulty normally just because I wanted to)

Characters 25 in total are needed, no dlc characters are needed (Will probably be more in future, but only Mr Krabs is available right now)
- SpongeBob
- Patrick
- Squidward
- Mecha Plankton
- El Tigre
- Rocko
- Jimmy Neutron
- Lucy Loud
- Angry Beavers
- Garfield
- Aang
- Korra
- Azula
- Raphael
- Donatello
- April
- Danny Phantom
- Ember
- Grandma Gertie
- Gerald
- Nigel
- Zim
- Jenny Wakeman
- Reptar
- Ren & Stimpy

This next portion is copied from another guide I wrote detailing the hardest difficulty in arcade, but I feel it is important to add the matchups to this guide as well. Enemies will be in parenthesis although make sure to look at the icon as some (mainly the TMNT characters will switch around in the 1v1 settings)

1v1 matches: The Ghost Zone (Danny Phantom), Techno Brawl (Raphael TMNT), Presenting: Nature (Nigel), Just Five More Minutes (Garfield), Wacky Grandma (Grandma Gertie), Attack of the Irken Empire (Zim), Oh Boy It's 3AM (Patrick), Ninja Training (Raphael TMNT), Hardcore Heavy Metal (Jenny), Clarinet Lessons (Squidward), Trip to the Spirit World (Korra or Aang), Pizza Night (Donatello or April), Time to Invent (Jimmy), Pinata Party (El Tigre), The Coolest Kid of the Neighborhood (Gerald), Culinary Masters (Ren and Stimpy), Rocko's Typical Tuesday (Rocko), Firebending Lessons (Azula), Breaking News! (April), Frycook Games (Spongebob), Earth Kingdom (Azula), Green Lizard (Reptar), Return of Sheldon (Plankton), Building a Dam (Angry Beavers), Ghostly Rock Show (Ember)

2v1 matches: Deep Sea Pirates (Garfield and Ember), Hillwood's Aquarium (Grandma Gertie and Gerald), Caped Costumes (El Tigre and Lucy Loud), Royal Guard (Nigel and Gerald), Dream Team (Gerald and Lucy Loud), Pizza Night (Donatello), Plaid Shirt Team (Rocko and Angry Beavers), Karate Team (Jimmy and Grandma Gertie), Cozy Sweater Team (Garfield and Nigel), Galactic Patrol (Ren & Stimpy and Angry Beavers), Secret Beret Club (Rocko and Squidward), Return of the Super Heroes (Patrick and Jimmy)

2v2 matches: Superheroes Unite with El Tigre (SpongeBob and Patrick), Crazy Hats Team with Nigel (El Tigre and Squidward), Krusty Krab's Employees with Patrick (Squidward and Spongebob), Metal Heads with Ember (Donatello and Raphael), Avatar Hunt with Azula (Aang and Korra)

3v1 match: Beaver party (3 angry beavers)

Set Stages
Stage 3: Bonus Minigame for popping slime balloons, you can play it for the other achievements or just wait out the timer it will not fail you.
Stage 5: Kaiju Battle (Big Reptar vs you and lil Reptar) Krusty Krab v Chum Bucket (Big Mecha Plankton v you and Squidward) These are normal fights just the big enemy will not fly as far away. To make up for this they struggle to recover so just try to get them off the ledges as quickly as possible.
Stage 7: Boss Battle: Shredder, King Jellyfish, Sartana De Los Muertos, Flying Dutchman
Stage 9: Bonus Minigame Whack-A-Bot, you can play if you want I just walk off the screen normally because that minigame is not v fun to me
Stage 11: This will ALWAYS be a boss fight against Vlad from Danny Phantom

clear arcade with all 25 basegame characters.
grindy and boring.
to make it a bit faster jump off the map during the slime balloon and whack-a-bot minigames as it ends those quickly with no penalty.