[kikems]

GRAC use BOBS , this not have any limit of size or colors.

Yes it's possible add 99 extra frames for any action you need for your character , and can use this extra fames to build anims like death or anything.
You have a graphic bank (99 frames per bank) for characters (up to 99 characters) and another graphic bank (99 frames per bank) for objects (up to 99 objects banks). You can combine frames for make characters or background anims.

You can use different palettes of course, simply reserve colors that not affect characters or other objects.

GRAC is ready to work with any Amiga with 1MB ram (512Kb chip+512Kb fast/slow). Try to make a complex game that work with only 1MB(512+512) ram need a lot of work but it's possible. The main limit is the chip ram, if you use 32 colors + mod music + sfx at the same time you overlimit the 512Kb chip ram easy. It's possible but need work hard , we do RetroWars game in 32 colors, with big character, lot of layers in screen, music in game and background scroll all with 1 MB ( 512Kb+512Kb ) but was a hard task of optimization. In GRAC 2.5 we provide some extra commands for flush music from memory and sfx for free chip ram as possible.

If your target is Amiga with 1MB chip ram or Amiga 1200 you not have big problems.
If no use music in game and use 16 colors you can build the game for Amigas with only 512Kb ram.