Some great stuff on show here and I enjoyed my time with this, I think the screen shake was a bit excessive and for some reason the game kept lagging a ton sometimes and it took like a solid minute for it to settle back to a good framerate, not sure what was up there but it was always happening near the lower water? It might be to do with the large amount of enemies that pool up down there and the particles it releases when you kill them.
I will say I found it a bit difficult to cover the ground with ink sometimes, which made it a bit frustrating to recover my ink when I was having to search around the map for individual pink pixels. I also had issues with the controls initially and ended up redoing the tutorial three times because I would instinctively try to press r to reload my weapon, which would restart the whole game lol, I think that's mostly on me though. There were also some issues with collisions on the terrain which would cause me to get stuck.
I enjoyed the enemy variety and different weapons I could try out, I had a lot of fun with the mower ability especially. A score screen would be great to compare to other players! Some of the effects used look really damn cool - the game over screen especially stands out to me, it just looks awesome.
Overall, I thought this was a very charming experience and I had great fun trying out the different weapons and seeing how far I could get. Great work Genya!! <3