I found myself having a better and better time with the game as i unlocked more, but a source of quit-worthy rage was the warping enemies. It wasn't simply enough for me to defend all of my corners, as sometimes they would simply warp straight past all of my defenses (Which were capable of killing the majority of their kin) and injure me. This lack of consistency of behavior made that pivotal enemy almost unforgivable, but i managed to enjoy the game around their presence (Usually.)