If you are the lucky one to do the traps while fighting against Raznal. This might help.
Just a simple red bar which turns green after you can trigger the next trap
- Trap is triggered -> Red bar appears and a heavenly sound of biting into an apple
- After 1,5sec the red bar turns green ans says "next" which is the time to trigger the next trap
- Stays active for further 0,5 seconds after the first 1,5 seconds to have a small eye on the bar while yelling at your mates and hating the evening because you are the mighty one who is doing traps! :D
Have a nice evening ;)