[Undead Overlord]

This game's plot was crazy...but somehow worked in the game. I played this game for a while, and I found it frustrating to leave my body for so long, and so often. The targeting system was a bit glitchy on my computer, but I managed to work around that. The not being able to die thing really got on my nerves, mainly because it is never explained, but mostly because it ruins the game's feel for urgency. The aliens are really tough and you need to be good to kill them, not invincible.
Had they put in a feature that made you have to kill a certain number of wraiths, or complete a puzzle, to restart outside your body at the beginning of the level. And have spiritual enemies that attack you, until you returned to your body. And if you died here, you'd have to restart the level.
That would have improved the game a bit, maybe not perfect, but better than the current ordeal.