Honestly, ZELL is one of my favourite game creators of all time.
He is the creator of "Forest of the Blue Skin" (ブルースキンの森) and runs a blog detailing its creation. In addition to this, he is also currently working on a game called "Succubus affection" which is avalible as a paid trial currently. I'd love to play it!
Various enemy life-drain systems
Many many enemies
Different enemy attack grapples
His game is avalible for free download, though you can support him. I recommend you do both.