Nice idea, although… It could receive a bit more love: either by polishing up a bit the UI, or giving some sort of feedback of how much you’ve stayed alive before running out of stamina (because, honestly, you’ll practically never die of arrows unless you actively try to catch them), or by increasing the number of arrows after a fixed time period, or by implementing jump and putting obstacles along the way… The possibilities are so many, give your design muscles a chance to flex a bit more!
Keep it up!