LOL!
That second part was like playing NES Excitebike. You can have a wild ride until she overheats, then you have to slow down until she cools off. LOL! Nice graphics, but, dude, the voice-acting ... please request some female voice-actresses from NG to help out next time. Rina-chan does an excellent *e-hem* "voice" for love making. Some others on here could probably help, too, if she's too booked up with work. A guy trying to impersonate a female's voice is not hot, and even worse when the audio quality is bad. Two things that could use improving. Other than that, nice job! (However, I must say, the first Umi-chan I saw was that snowball fight game you made. I thought you were trying to bill Umi-chan as a sweet, girl-next-door type that was going to have "American Girl" adventures. It just sort of surprised me to see you do a hentai/porno game with her. Not that I'm complaining, though... ^_~)