Stage 4 - Keep Your Eye On The Ball
First hit the hidden green toggle switch and then step on the green hold switch.
After pressing the hidden green toggle switch the two-way arrow points at the secret ? switch. When the ball rolls over the ? switch the two left pointing arrows disappear for a moment.
Don't be mislead by the two new arrows, just walk around them and quickly go upstairs. You collect four coins, two at the top, one in the middle and one a little lower. Walk back to the upper right hand corner, trigger the red warp and return to the starting area.
When the pyramids go down walk to spot 1, wait and go to spot 2. When you get access to spot 3 collect the coin and run back to 2 immediately. Wait until the ball passes the green pyramid, then walk to spot 4. When you get access to spot 5 get the gauntletz and run back to 4 immediately. Wait until the pyramids go down and enter the blue warp.
As soon as you've hit the timer switch get the spring, jump to the goober straw and suck up the four puddlez. Walk to the orange switch and meanwhile put the new grunt on the creation pad, now walk to the green hold switch. Keep an eye on the ball at your right hand side, when it reaches the two-way arrow your straw grunt must stand on this green hold switch. Now both gruntz proceed to the platform, when the pyramids go down put them on the purple switches (spotlight!). They must stand here before the last ball hits the black one switch near the warp stone, this blocks access to the fortress. One of your gruntz walks through the maze, gets the warpstone piece and gives it to the king.
Walk to spot 1, get the warpstone, then spot 2 and 3.