Mega Coin Squad
22 Achievements
1,000
8-10h
Not Today
Complete the single player game without using any continues or retries
80
1.5%
How to unlock the Not Today achievement in Mega Coin Squad - Definitive Guide
To be safe, I wouldn't even back out to the main menu at any point (though I can't confirm this will prevent you from getting the achievement).
I can confirm that if you restart the game by quitting the game (pressing Home -> Menu -> Quit) – even when you are safely at the level-select screen after you have just beaten a level – and then relaunch the game, you will not get the achievement. I made the mistake of quitting the game (like how I mentioned) after beating a few levels and relaunching it, and then I played the remaining levels (all without losing a single heart) and didn't get the achievement.
I restarted the game because the lag starts to get bad in World 4 and quitting the game (like how I mentioned) will fix the lag.
The lag seems to be caused by a memory leak issue (not confirmed, but likely), so to get the least amount of lag in your playthrough, make sure to play the game immediately from level 1-1 once you launch the game. Important: If you want to attempt this achievement and you've already played a few levels (or the game has launched from Instant-on mode from the last time you played Xbox), I would suggest quitting the game (like how I mentioned) and relaunch it. Then start immediately at level 1-1. If you ever have have to use a continue (AKA die), then quit the game (like how I mentioned) and relaunch it. This will optimize the memory for the game and allow the least amount of lag for your playthrough.
"Major framerate improvements and leaderboards for everyone."
https://twitter.com/BigPixelStudios/status/60817642032665395...
Anyone, please comment if you notice no more lag after playing 14+ levels, so I can update the solution.
I can confirm, that doing this (EVEN BY EFFING ACCIDENT) you will void the achv.
I beat the game without dying and didn't get the achv. =\
This is likely the most challenging achievement for the game, though it still isn't too difficult overall. To do this, you must complete all 16 levels without dying AND without manually retrying from the menu. This can mostly be challenging due to player error from misplaced jumps over spikes or lava (not one-hit kills, but does impact your overall health), or from homing enemies following you from awkward angles. To make this easier, use some of the diamonds you earn to obtain the Bonus Time upgrades, which gives you extra time in each level. This may help in pacing yourself to avoid unnecessary damage, while affording the option to earn further diamonds.
Use more of your diamonds for your movement upgrades, or a weapon of your preference if you so choose (I personally recommend the Assault Rifle or Rocket Launcher, as later upgrades to these weapons cover a large area with a wide radius of explosions, depending on the weapon). If you die at any point during your run, you will have to restart from the beginning.
Once you complete all 16 levels with any character without the need for continues or retries, this achievement will unlock.