LEGO Batman Robin bomb glitch [Updated]

I’m only three achievements away from completing the game, so obviously, I’m going through it in Free Play to get everything and get 100%.

For some reason, when playing as Robin in the Technology Suit, he can place some strange looking bombs…

It also happens when you play as Nightwing, not too sure if it’s a glitch or part of the game.

{edit} Ok, I’m an idiot… I forgot that when you find a certain red Power Brick, you unlock ‘Decoy’ which is obviously what’s happening .. lol