Kick Scorpions in Desert

If you press 'up', 'down', 'left', 'right',
your plane will move up, down, left, right.

If you press 'z', 'c',
your plane will turn left and right.

If you press 'x',
you plane will shot with gun.

Be careful scorpions
and you eat the greenfoot icon your plane will be upgraded.
and your score reach 500. Scorpion's boss will be appeared.

Then, enjoy this game.