Add increasing threat level to game

[plexsoup]

Games need some type of progression or escalation, punctuated with brief respites.

Introduce some type of increasing threat level mechanic.

Send more bad guys, or tougher bad guys, or something. A boss battle or two would be nice.

[plexsoup]

cops could be tougher, I guess

[plexsoup]

I increased the HP on cops, but gave them visible hit flashes (blood), so the player doesn't think they're indestructible.