Not sure why everyone is complaining about the energy. This game's implementation of energy is awesome -- it doesn't require playing constantly and checking every hour to be competitive. Playing for a brief time once per day keeps you on pace with the leaders.
Doesn't work for me, loads to about 80% and then an error message pops briefly that says I should have waited until it was fully loaded (without me doing anything). Goes to what appears to be the main game screen, except main window is black and all un-interactive.
This game has a fairly critical bug.
1) Enter a level from the menu.
2) Return to the menu.
3) View user-created levels.
4) Pick and finish a user-created level.
5) Return to the menu
6) You now have credit for completing the official level you chose in step 1.
This game is incredibly annoying. Impossible to win when all you see is ships that fire 1000000000000x faster than you can and there are 8 of them in every bubble.