You can use any objects to load the cannon.
For example, a model of the planet Mars.
Mars is MUCH more massive than a cannonball.

resetting the game fails to load, causing it to not launch steamvr home

Fun minigame, but pressing the reset button (ingame option at the intro panel, when you scroll down) crashes the game. And since people have the urge to press every reset button as soon as they join the map (because that is obviously the politest and nicest way to greet people regardless if others are currently in a match or not), sadly the map is kind of unplayable, if used as a public room, unless you guard that button somehow, kicking everyone who comes close to that panel.

This is ok. I only tried it alone, but imagine it would be fun with a couple of friends.

Would love for some of this older steam VR stuff to get a look and some fixes. There is a wealth of great content in Steam VR and much of it needs some love.

yup, doesn't work with the index

Yeah, seems buggy, like the cannon wont do a thing to the bricks. The quest can be completed by crashing in to the bricks with the drone and then shooting the chest with the cannon.

ty robotainment, simple hands worked

Doesn't work with Valve Index I don't think. Needs updating.

Pressing the buttons with five-finger hands is broken, use the simple hands to press them.

How do you play this? The direction buttons rotate the canon left, right, up, down. But there's no crank anywhere as per the instructions. Also, can't destroy the treasure even after firing many canonballs at it. The bricks protecting the treasure barely move on impact, even with an explosive shot.

So this doesn't work, read the instructions and they said something about picking the direction of the cannon rotation and then using some sort of crank but no crank was anywheere near the direction buttons nor did the direction buttons turn the cannon at all, needs to be fixed.

简单，不过挺好玩的。