Ability/system-TD games powers and wepons

An abilityor system that would let the user get powers or wepons of towers from tower defence games like btd6 or Kingdom Rush. The system could be based off a points to buy and upgrade things got from it or remove some weakneses or even fuse some into one, more powerful. Tge ability could be based on users energy, imagination and knowledge about games. The items created could be things like infinite range sniper rifle, plasma sentry turret. Powers could be things like archery, magic, creating a wave of nails(tack shooter btd series) or any other thing a turret from a game can do, even generating money.

The power can be made op by leaving imagination as an only limit, or limited by the requirement to unlock it in the game that it is from or by a quest or something like it