I think the option of posting comments or something like that to people's boat is great, i don't know just something to cheer up the person that spent in the boat some long time (5 minutes) or maybe a rating system to it, something like interacting more with the boat.
The game need more improvment, once i finished the easy level i couldn't get back to the menu. The colors of the menu isn't that good, but i liked the song (even being annoying).
 "Remnants of Skystone Alpha")
 "Dark Cut 3")
 "Pooandwee's Shooter ver.2")
 "Shoot+ Vector Storm")
 "rlax")
 "Gateway I")
 "Orbs"){kind=icon}
 "Z-Rox")
 "Add like mad")
 "music euphoria")
 "Fredrico the Joyous Blob!")
 "Bolas")
 "Stellar Hero")
 "The BUTTONS!")
 "Whiteboard Tower Defense")
 "Stepmaster")
 "Exit")
 "Triangle Brothers and Bub")
 "Momentum Missile Mayhem 3")