Messiah
Messiah was a weird and easy game. If there was a room full of enemies, you'd just have to possess one of them, which would cause the rest of them to attack your poor host, and then you would just jump out when the person died... possess someone else, and repeat until there was just one person left whooo... you would then POSSESS... and go on to the next group of enemies...
And there is no way you could have a "difficult" enemy because if there was someone who was stronger, the best strategy would be to POSSESS them and then YOU would be the stronger one... it was an ass-backwards game where the weaker the enemies the worse it was for you, but on the other hand, the easier they would then be to kill when you inevitably possess the stronger enemies...
The only difficult part of the game was the final battle with Satan because the little devil-yous could possess things too. Which is probably why I didn't finish the game, it was at that point that it actually became challenging in the slightest, and in fact, annoyingly so.