It's like fruit ninja, but with the option of moving your hand in the air to control the sword. Hover over the game select fruit for a second or two and it will select The smaller the fruit, the more it's worth. Use the up and down keys to change the video sensitivity (depending how far you are from the camera and how much you are moving. You can use your hand or even your whole body if you hook it up to a TV. Use "M" to switch controls.
See my latest project: https://scratch.mit.edu/projects/71611400/ I made the whole project, but I used the structure of program on Block ninja by RotoGamez for this game. Version 2 (if I make one) will have fruit ninja swords and maybe unlockables, bomb deflects, pausing, and backgrounds. Please give feedback especially on the video motion thing. If nobody dislikes it, I'll keep it. FOR THE VIDEO MOTION THING: To make it work, sit still (and make sure the background is still also) and then move you hand to control the sword. It works best when you are at a slight distance from the screen, and if it moves too slow, then use your body as well, move closer, or change the sensitivity.(up and down arrow keys). If it doesn't work, make sure you have switched controls by clicking "m", your camera is plugged in, and that scratch has camera and mic permissions.