Oh yeah, I never thought he'd do an AVGN episode. I think he only does those for old official releases, not hacks.
About sending him a cartridge maybe I will in the future. Living in Brazil the costs are kind of prohibite, but I might get there hehe
He did Hong Kong '97. The origin of the game seems like a mystery, though I've assumed it was some random demo-scene homebrew. I've seen a discussion, of something complete else, on Tomato's Legends of Localization divert into HK97 and who "HappySoft" was. (they've assumed it was either a Japanese or Chinese "company" but couldn't decide which)
And he also did a series of short reviews one Christmas (wasn't it 2014?), which I guess he each counts as an episode. That included Crazy Bus, a homebrew ripoff of Desert Bus for the Genesis. I've heard it was originally just some kind of compiler test demo. Someone still reproed it and mailed it to him.