Regarding character slots, what if we shrunk character selection into categories?
For example, Super Bomberman 1 characters with Dr.Mook, Carat, Evil Bombermen.
Super Bomberman 2 with, Magnet, Golem and so on.
etc. etc.
That way we can add in a ton more slots into pocket section.
Like, say, we choose Category Super Bomberman 5, once you choose it, you get a scroll selection for all the characters from that game to choose from.
UPDATE:
I've finished Terrorin. :D
Compared to the other Fiendish Bombers, Terrorin only needed a marginal alteration to his sprites, his legs are thicker, the shading is different, and his size proportioned more akin to Saturn Bomberman. Had to be creative with his death anim thoe since the box is so tiny but I think it looks good. Enjoy :D