Entropy Survivors is a bullet hell roguelite with 3D visuals, customizable weapons, and online co-op. Players simultaneously control Froggie, a sharp-shooting astronaut frog, and GERM, their melee-wielding mech, as they battle waves of the increasingly strong and numerous forces of Entropy.
https://www.youtube.com/watch?v=sOPhQ3WPgdQ
https://www.youtube.com/watch?v=4LMXMJn27mU
https://www.youtube.com/watch?v=LNUHgIpc59Q
