GameSpy DS - Review, by Phil Theobald: "Pac-Pix is fun to toss in for a few minutes at a time, but its allure wears off during extended play periods." [Score: 3 out of 5] - http://gba.gamespy.com/nintendo-ds/pac-pix/607782p1.html
HonestGamers - Review, by midwinter: "A simple, expressive challenge that hides its hidden depth under a welcoming exterior of warm nostalgia and high tech cool." [Score: 9 out of 10] - http://www.honestgamers.com/systems/content.php?console_id=52&review_id=3541
NTSC-uk - Review, by Simon Dominguez: "...it's a beautiful, magical experience, but at the same time it's one of the shortest console games we've ever seen - if you don't love it enough to play it to destruction, chances are it'll be back in the shop in a week - http://www.ntsc-uk.com/review.php?platform=nds&game=PacPix
IGN DS - Preview, by Craig Harris: "The game has changed slightly in its evolutionary development cycle since its debut several months ago." - http://ds.ign.com/articles/585/585399p1.html
GameFAQs - Data, FAQs, reviews, and a message board. - http://www.gamefaqs.com/portable/ds/data/920755.html