The primary reason I don't like Turrican has to do with the damage/hit mechanic. You don't have any period of invincibility after taking damage, no physical reaction like being bumped or displaced, and even the sound effects provided for feedback are very light. You almost can't tell you got hit except by watching a sprite interpose yours and watching your life bar RAPIDLY deplete. This situation alone is enough to doom the game for me. If that were changed I think I could actually like the game.