There's been some issues that slowed the development... like noticing bugs in the game but unable to do anything due to the issue.
And lastly the paper gun wasn't really intended to be the secret but due to unexpected issues (it was suppose to have levels actually -- yep in 3 days time frame), it was my last option...
The enemies count and generation has been fixed and will be upload swiftly... hopefully by the time you're reading this.
I'm so glad for your feedback. It means a lot to me. Thanks so much for the helpful feedback, Keepchatting :)