Update:
Not a bootleg, as far as I can tell. Haven't put too much time into it (thanks DW3 GBC) but I like it so far! I sorta reminds me of games such as Azure Dreams and Fatal Labyrinth, in how animals wait for you to move, then everyone moves all at once, not to mention the randomization of the game world.
It's a top-down "Zelda perspective" survival adventure game, a very neat and different concept. Worrying about keeping your hunger and thirst levels down, trying to tackle animals you probably shouldn't piss off, in order to survive, worrying that if in your most recent game respawn, the mushroom that you knew fed and watered you before would instead poison or dehydrate you now, etc.
Not to mention finding all kinds of miscellaneous items on the jungle floor, or killing animals for relevant items, and combining them into new items that you wind up needing to survive, it's good stuff. The first time I combined two items to create a flint and tinder, allowing me to start a fire and cook some food... classic.