I didn't know exactly what to expect from this game going in but it genuinely had me hooked from the start. the fast paced doom-like gameplay is super fun and keeps you playing one level after another. the enemy designs are decently varied and are all fun to deal with. The bosses really surprised me too, the bosses felt like they had a lot of work put into them since the few bosses that there were had varied movesets, which meant you'd have to deal with all of them differently rather than just blindly shooting. the secrets and achievements also gives a lot of replay value to the levels. besides all of that though, the game is plain, high octane, fun and that's all you really need to make a game like this super enjoyable.
looking forward to the full release cause this left me wanting a lot more. good luck with development <3