Blaster Master Zero is a decent game. But that's all it really is. The format of having both top down and sidescrolling sections is what makes the series unique but this game suffers in particular by having the top down sections be fairly boring due to the overreliance on the Wave/Level 10 gun. It is the answer to literally every problem in the game and it should have been balanced much better. Additionally, Jason just moves slow as sin in the sections and there's a lot of waiting. The tank sections however are much more enjoyable, giving you a more diverse moveset and generally being more snappy. There's a lot to be desired but all in all BMZ is still "good enough."