I just finished the game with 7/11 space flesh. Here are my thoughts:
1. I like the intro to the game, and the fact that the tutorial is skippable, so if there were players trying to replay the game and get to finding more flesh, they could get into the action quicker. The visual effect of the ship speeding up was a cool touch.
2. Controls felt mostly nice. The idea that you can alternate fire is nice, although I think currently it is reloading if you try to fire without ammo, when it could start reloading after firing the shots. Some jumps were a little hard to land, although there is a jump shadow, and I do like that the dash can be used in mid air and felt responsive.
3. Enemies had an interesting balance and variety. The cramped hallways made it so that even enemies that just chased you were a high priority. I did think the 'roomba' was at first a helper, trying to lay down bombs that you could use to help destroy the blobs, before I got to the door and realized that the roomba was an enemy. Some rooms felt like they were filled with maybe too many enemies, but you could back up into hallways to make it easier to manage.
4. The bombs are cool too, in that they go off either after a small amount of time, or after shooting them again, which allows them to be used for a lot of cool puzzles.
5. It would be nice if the doors had a different texture that didn't blend in with the hallways, as sometimes it was hard to tell where the entrances/exits were.
Overall, a very neat game, and one that I could see being built upon in the future, or used as a 'basis' for other projects. Great work!