Thank you, Xtra and everyone else, for proving to me that I am once again, not a gamer.
To be fair, most of the critiques about this game, DC already pointed out. Still there are a bit more jank things that I discovered while playing the game:
1. The music bug only seems to happen after boss fights - or at least, that's when I notice it. It never has happened to me when dying on the first stage, but consistently seems to happen on Boss 1 and Boss 2.
2. You can't shoot while holding the left arrow-key. You can shoot while traveling left, yes, but this makes traveling/shooting to the left feel absolutely terrible.
3. If you hit the ceiling/floor of the game and hold up/down respectively, you stop moving. Is this intended? Can be confusing for people who pick it up for the first time (I thought I kept getting stuck on the boss room, but it happens across all rooms).
4. Weird bug that happens in Stage 2. I figured it out! If you hit any flower enemy (the stationary ones) it'll take you straight out to the title screen. Weird!
5. The boss death sound for Boss 1 (as I never beat Boss 2) blows your ear-drums out. It sounds as if someone's mic is continuously peaking. If you can adjust it, it'd be very good.
The rest of this stuff is less essential and more nitpicky (I say after pointing out music stuff in 1):
1. Game can sound a bit empty, but with how fast you can clear enemies having a boom sound every time you kill one could be sensory overload, imo.
2. A help screen. I made it to Boss 2 without missiles, and when I found out that we can switch weapons from the get-go made me unhappy, to say the least.
3. At least say that Space is shoot. It only says start.
4. Once you die, make it so that the player has to press Space to move on to the next life. You can't catch a break in this game.
5. For Boss rooms, I have now noticed that actually, your character doesn't move automatically after the first input. If that's what's intended (full control of the character over the semi-auto scrolling nature of the regular levels), maybe just get rid of that initial momentum in Boss fights. Could work either way, however.
6. Boss 2's seed bomb attack is personally, really unfun. Just even a little bit more space between each seed would make the boss still hard (as it's still shooting at you) but not feel impossible. But maybe I'm just garbo, who knows.
Good, fun game overall, but it gave me cramps.