So the game has multiple endings and only one of it has the bj mouth? Can I unlock every scenes after I complete the game once?
How long did it take you to finish the game?
Also, I saw tags like bestiality/tentacles, which admitedly not my thing.
Do we have enough scenes with human or is it more like 70-80% tentacles/monsters scenes and the rest with human?
The game has multiple routes. Standard Hero Route, Bandit Route, Horny Hero Route, Blowjob Monster Route, Pigmen Route, Goblin Route/Ending, etc. They branch off at different points in the game, so you'll experience different gameplay loops with them. The Gallery room lets you choose which routes/stages of the game to skip on re-play through - its super useful for zooming to other routes. It should also have a leaver to unlock most the scenes after getting a ending too.
I guess it'll take about 5ish hours or so, maybe more if you do all the routes. If you like corruption games its worth playing.
Most the bestiality (with the bugs at the start for example) is mostly locked to different stages, and is usually somewhat skipable. Then theres a goblin part - which is pretty much all voluntary, and pigmen which is again, voluntary. Most the Blowjob monster fights have ero scenes on defeat, but if you win those, you won't see those either. Hell, you can skip pretty much all the ero in this game, and just go and kill the final boss.