Theres plenty of shooters out there but would be interesting to see a shooter that involves elements of aviation. Something with a blend of ace combat, galaga or R-type that lets you control a ship or aircraft. The genre could be arcade or RPG but it should include upgrades and a non linear build to the upgrades something like sonny or arcuz so that players could create a unique build thruout the game. A mix of this style of upgrades with something similar to Robokill would be very nice except Robokill just felt very repetitive after a while. Constructive criticism is welcomed along with other ideas
A game wich would be a bit like warfare i guess, but you get heroes, and buy items, change lanes, where you only control heroes and wave of units already spawn every now and then. And yeah develop it from there!