Nebula Rush

This is a submission for LD44 Jam, with the theme of "Your life is currency"

A Space shooter where gaining upgrades doesn't cost you any in-game currency, but instead your own lifetime.

How long can you survive in a nebula filled with hostile spaceships? And how much time are you willing to spend to grow stronger?

Features:
10 enemies with unique weapons
Infinite waves to fight through
An upgrade system
3 Special attacks - bullet-clearing explosion, temporary shield, and a powerful laser

Controls:
Mouse - movement
Left mouse button - fire
Right mouse button - special attack
Middle mouse button - change special attack