Here's the rundown of the changes for the current version of RetroShooti, straight up from the CHANGELOG file.

 * Complete rebalance of the game's difficulty. Now you 
   should be able to actually enjoy the game!
 * Fixed 30fps support, for whoever uses that. You can
   test the game in higher frames, as long as they are a
   multiple of 30, through the config.ini file on
   your AppData local folder.
 ! Up to 240fps allowed.
 * Added a "hurry" function bound to the cancel button that
   makes your ship go faster, even when doing a somersault.
 * Fixed ships shooting while frozen by the stop sign
 * Fixed a lot of inconsistencies and bugs on the endscreen
   for single player caravan and multiplayer.
 ! Boss Rush mode is still bugged on loops, though.
 * Fixed 30fps setting starting at half speed on boot
 * Added a Legacy mode for Direct-Input gamepads and other
   assorted stuff we plan on not supporting on the long run
 ! Run the executable with a /legacy argument to enable!
 * 16SHOT doesn't get destroyed by clangs anymore.
 * Now clangs, stop signs and burgers can be shot and get 
   pushed from both directions.
 * Fixed a bug on the Sound Test in which music didn't loop
   right after being paused.
 ! Is there a sound test? Where?

And here's a short announcement:

After we reach 0.1.1.0, the game will go public. We're working on releasing a public demo soon and we don't want to miss our deadline, so we're working sleepless nights to deliver the treats to all of you in the most accessible ways possible. We really look forward to it.

Thank you for playing so far! Keep in touch for more information!