This is a prototype with very little content, but it's engaging for a few runs. The time economy between upgrading and shooting feels very good, giving a weight to each action and making collectors actually worthwhile. Other than that... There's not much to say. It's annoying not being able to pause, with how long some runs can go. Upgrades are simple and somewhat bland. The prestige could've simply not been there with how little there is right now, and some of those perks would fit well as simple upgrades. Consider if you actually want to make this a "nodebuster-like" as the prestige and CRT seems to imply, or just make it a tower defense roguelike.