One of the best so far. Simple, fun, and everything works well. The spin mechanic is very simple and only works in multiplayer (I played alone, it was non-existent and only served to delay the start of a round). Progression becomes difficult and very slow from LVL 4 onwards, but everything works very well. If I could change something, I would change the time it takes for the boss to start attacking after the start of a round, because it attacks almost instantly, and we players can't move as soon as the round starts, and also I would like to earn more money with upgrades (Only 1 coin per level is too little). If there were more varieties of bosses, mechanics, and upgrades, it could easily become a big game. I will play again to test the other weapons.