Super Star Wars

For this trophy you must play as all three playable characters. The characters are the following:

1. Luke Skywalker:
   Luke is the first available playable character to use until Level 8: Cantina Fight. He has the weakest blaster in the game (Laser Blaster), but later receives a Lightsaber (only usable to Luke Skywalker) as a melee weapon. He can slide and super jump with his movements.
2. Chewbacca:
   Chewbacca is the second playable character that you'll unlock for Level 8: Cantina Fight. He's also the slowest in terms of movement speed; however, Chewbacca has the most health in the game. He starts the game with a Flame Blaster (the 2nd weakest gun) and has no melee weapon. He can slide and super jump with his movements.
3. Han Solo:
   Han Solo is the last playable character that you'll unlock for Level 9: Escape from Mos Eisley. He's the fastest moving character in the game in terms of speed. Han starts the game off with a Flame Blaster just like Chewbacca and also doesn't have a melee weapon. He can roll and super jump with his movement modes.

The fastest way to obtain this trophy is to use the Character Select Cheat Code, and then die two times picking a new character that you have not used during your current playthrough. On your last life, you’ll unlock the trophy. With that information out the way, you can also play the game normally to unlock the characters if you like, but the Character Select Cheat Code is needed to obtain 100% completion anyway and is the way to go about obtaining this trophy (refer to the Roadmap or Han Shot First! trophy for the code).

Now for the question of "is this trophy is a missable or not?" it technically isn't really missable because you can just start a New Game with the Character Select Cheat Code and die while switching to the other playable characters, which in turns makes this trophy not entirely missable due to that only taking a few minutes to do.