What's the Name of That Book??? discussion

This topic is about
The Planet of Terror
SOLVED: Children's/YA
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SOLVED. Marooned on alien planet with monkey sidekick kids illustrated [s]
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You're welcome. Please let us know if it turns out to be the right book, and we'll close the case. :)

It was a kind of sci-fi adventure with a space explorer character (more pulp SF-inspired than a real astronaut sort of thing) who crashes on an alien world. He's got a monkey (or maybe a chimp) for a sidekick, they both wear space suits. I believe the book had puzzles and activities you were meant to solve before reading on, but not the sort of book that you'd actually draw in, because every page was illustrated in full color from nearly top to bottom. It had a cartoony art style but not flat art at all, the characters and backgrounds were very well rendered. I vaguely recall a lot of thorny vines, I believe that was what they crash landed in.
I think this book was part of a series of illustrated activity books from the same publisher, though they weren't related thematically. It was an oversized paperback like a coloring book, probably in the 30-40 page range.
I'd love to track down a copy today, I remember the art was very cool.
Thanks for any help!