Hiya lads! I made a short experiment a few days ago by remaking Minecraft TNT in Roblox for a video, and this is the result!
https://www.roblox.com/games/6508381979/TNT-in-Roblox
Click any noob head to set it off! You can also move them around in order to only set off a select few at once. I made it resettable.
If you have any suggestions about improving functionality or performance, feel more than welcome to reply!
PS: I only got it to the point where it worked without optimizing it, and I can already guess that keeping the TNT anchored until it is set off is the best approach.