Kind of game that makes me sad that it either doesnt have a steam release, and if it had - it would be over too quickly. 

So much detail to addressing minor nuisances/gameplay quirks (infinite ammo at the spawn, no need to walk away/buy max ammo upgrade, solved by "faster firerate when holding" upgrade and resetting the "streak" when spawn ammo got picked up; incentives to walk further, problem walking back, solved by creating "rescue" points; etc)

Honestly, i'd buy it if it was extended with different characters with different weapons/environments if approach to creating these would be as thought out as the starter one. Really good for the usual incremental basis.