Some of the patterns are exploitable by design, gotta graze bullets to get upgrades! Also, if you could give more detail about what happened at the end, i can tell you if it was intentional or not.
Ye, that makes sense. The lag was when a lot of bullets came, and the solitaire glitch happened.
ahhhhh its probably performance related, i didn't have any time to optimize how i created bullets and every possible situation.