Not just a game...
Of all my years on Newgrounds, I've played your series from the beginning. I've watched your series evolve from a... I don't want to say parody... homage? Yeah, that sounds about right. A homage to Tom Fulp's Pico series, exploiting the puzzle aspects without the messy violence and adult humor to evolving into its own series with complex storylines and characters you can't help but grow attached to.
From the beginning, we've seen Phil develop from an average kid wanting to break free from the chains of academia (who doesn't?) to somewhat of a maverick trying to not only break free, but save the day as well as his friends.
Although no one was expecting a followup to RS5, this is a welcomed addition to the franchise and it's nice to see you're adding importance to the other characters as well. Some of the puzzle may have been a little tricky (the SNOZ thing was kind of misleading), but all in all the setting was nice, most of the puzzles were tough yet enjoyable and the characters and overall storyline are getting complex enough to stay interested, but not needlessly complicated enough to make the series unbearable.
Hope you publish RT2 *cough*RS7*cough* soon.