Potential Bugs:
B1 - The game isn't progressing past Wave 5
B2 - Many of the enemies go idle after jumping over the fence
B3 - I think one of the defeated enemies attacked me after spawn killing one of them with a grenade
B4 - Another one I found so far was the game not sending me back to the menu after completing the level and telling me I completed one of the challenges. (I noticed this after completing all 5 waves on easy difficulty).
B5 - Defeating enemies before they make it past the wall will spawn ammo beyond the chain fences making them unreachable.
Bug 2 and 1 I'd say needs priority. It will be essential for the game to function as nice as these new updates are. I haven't gotten to complete the challenges because of these two bugs.
Bug 3 is rare, it only happened once as I went to pickup a grenade off the enemy spawn I fragged.
Note: (Edits made)
For some reason the waves proceeded as normal when I enabled custom waves up to 20.
I'm taking a closer look at this bug actually to see whats with it, I made it past wave 5 on medium difficulty but got stuck again on wave 6...
Also,
No problem, What do you think is next for fixing or making for the next update? You're thinking of continuing with animations, gameplay, story, bug fixing, or something else? So far there is some dialogue for a story, a setting, some weapons, a few animations, and two challenges.
If you need more statements from me, ideas and such you can say so to me and I'll see what I can think of, especially if it involves impreg or lactation.