Here's some that I can think of right now. It's obvious that some of these might be OP and expensive.
Lawnmower slot - you can switch to a lawnmower to seamlessly run over bushes in places like wolver dens.
Hunchback shield - Attach a shield of your back like a t3 gremlin and
Teleportation Capsules - Get out of mobs quickly. If you land on spikes, sucks for you lol.
Highlighted Squares - On bomberman pvp, to make sure you are completely on a square, a light underneath you will light up on the tile you are on. (Good
for beginners)
Material,crown,heat Magnet - A long vertical range that picks up stuff you will spend time on picking up yourself. Might be OP in FSC
Can you think of some? Then leave some ideas below!
Scape Doll: Grants a free revive on use upon death.
300 Energy.