Portal is overpowered and needs to go
Right now I am in an endless game (The Tower / Wave 163). The game has been running for almost 32h. Have I actually been playing for that long? Hell, no. The game has mostly been running on it's own past wave 80. I check back in occasionally pick up the coins, place some traps in the few remaining available spots and then turn off the monitor again.
Wave after wave runs through the traps, reach a grid of about 30 portals and get teleported back to their entry points. Rinse and repeat.
It takes forever to actually kill all the fatties but sooner or later all the mountain trolls and earth lords die. That is with me never firing a shot or activating the trap reset trinket. That can't be the purpose of the game.
While this game right now is extreme. All endless games are dragged out to be several hour long marathon sessions. High scores aren't made impossible either. I made it to number 1 in the leaderboards on The Crossing with Portals and probably have a good shot at the top spot at The Tower as well. If you play long enough you accumulate the points sooner or later.
Portals might be fine in Story mode because of time constraints but Endless mode really becomes ...well... endless.
I don't expect it to be removed from the game but please don't include anything like it in Orcs Must Die 3.