Okay, it's even more complicated than that, because you can't avoid getting the sweet at the top of the screen. So:

1. Climb up the right-hand side, collecting four of the first five sweets (the fourth one up is probably the easiest to avoid).
2. Go over to the left-hand side of the level and climb all the way up to the top, only picking up the sweet at the very top.
3. Use bat powers to get the sweet that's just hanging there and to ensure a safe landing.
4. Go round the whole course again, picking up the four sweets you've deliberately avoided, and then use bat powers to get the five in a row at the top-right.
5. Climb all the way back to the top and use bat powers to get to the exit.