Thank you for your time! I appreciate you giving it a shot.
If you just got the purple fruit, you stick to surfaces, which means you can climb up the darker tunnel to the upper area. Once there, you continue using that power to cross the obstacles to the left and find the next fruit.
Though it is a failsafe, the "R to reset" can also help if something catastrophic happens after getting the purple fruit; It returns you to where you first got your current power-up, but it also adds a stroke so it's fair.