Use the arrow keys or on-screen controls to change the direction of the blocker. The blocker deflects the arrows away from the gem. If you survive for just 2 seconds in hard mode, you win. But if an arrow hits the gem, you lose. If you want to pause the game, click space or use the on-screen control in the middle for it.
This was a collab so @Coding_Club_ooman's version is https://scratch.mit.edu/projects/478200545.
