Hey, it's a pretty fun game! (like a bloody groundhog day for the insects..)
The level structure reminds me of 'That Level Again' from long back for some reason, even though it's not that similar (maybe due to the theme?)
Since you seem to be maintaining a buglist so here's one more (sry for increasing it :))
- The menu and endscreen music do not loop (they seem to be loop friendly though)