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Energy bar:
-timer
-HP
-ammo
-stamina

Tank:
-moves the screen
-recharges battery
-protects player
-needs to be kept alive
-moves camera up

Gun:
-weapon
-mining tool
-moves camera to the side

Gems:
-currency
-collecting many gems boosts damage and recharging speed

Enemies:
-attack player
-attacks tank by chance
-give gems

Shop:
-lets player repair the tank
-lets player to change the stats

X button:
-releasing makes player shoot
-holding enables accurate aiming mode

Z button:
-makes player dash
-speeds up the tank

Third-party resources
Clickteam Fusion 2.5 - engine, graphics
Famitracker - sound effects

Contributors
AgentAPM - concept, programming, graphics, testing
Sledge3 - sounds