Mysterious Bug

A weird bug made it so I couldn't go down anymore. The workers still move though, so I'm getting stronger lol. It seems like you can only choose up to 3 types of weapons besides the basic machine gun and planet weapon. Machine guns go up to 6. Other weapons, maybe up to 4? I tested to see if I could reach triple digits or max level, and confirmed I could eventually surpass level 101. Since it'd be a waste to just end with an error, I tried to do everything I could. Using jump didn't change anything. When I used the FEVER drill at the bottom right, it started moving and I was able to clear it~