One of the weapons in Nitrome Must Die is the Dragon Ball. Through name and appearance, it appears to be based off of the Dragon Breath weapon from Castle Corp, where it is the most expensive item ...
In Nitrome's 100th game, Nitrome Must Die, there are a lot of weapons. In the first few levels you see your basic Machinegun, Pistol, Shotgun... but then you start to get cool referential weaponry. ...