Major update (0.3.0)

The stats perks update.

Note: This update introduces an evolution of statistics throughout the run, which will have to be purchased with credits, recovered from the corpses of enemies.

-New content-

- Basic perk system. Press TAB key to open/close in-game perks menu at any time.

- The robot becomes a ball of energy.

- The game becomes much more difficult and completely changes the way to play the game. That's why the online leaderboard is reset.

- Removed directional light effects from player.

- "Light vision" has been removed from arena mode.