I have to echo kuma9k's comments here. The encounter rate is weirdly very low, the hijacking minigame costs too much to do, it's too easy to fail, and what's more, you're not even told *how it works* when you first try to do it. I thought you had to touch the enemy's sprite with Sumireko's sprite and kept wondering why it didn't work, until I randomly pressed a button and discovered I could shoot.
Also, the Sleepers are way too hard (Satori, the very first Sleeper you meet, probably shouldn't be able to two-shot you), and losing a level every time you die is *way* too harsh of a punishment. I'd rather the traditional Dragon Quest punishment of losing half my money than that.