good! a few things. cute graphics, of course. the music is also good. the variety in characters to show the options of the shielf is good.
the bear's jump is reeeeal sensitive/just goes really high. i would calm it down. less jump.
Also, a way to change controls would be nice. i think i would've done a little better if i didn't ahve to use the native controls.
the mechanic for the gmtk game jam was good. i like that you just use a shield. of course you can use the shield as a weapon by throwing, but it's a cute idea nonetheless. making those minor changes above, i think you've got a great game!