This solution is untested.
Slot Machine
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . 0 | . . | . 0 . . | . . . . . . . |
| . . | . 0 | . . | . | . . . . . . . |
| . . . . . | 0 . | . | . . . < . . . |
- - 0 | 0 . | . . | . | . . . . . . . |
| . | . . 0 . 0 | . | . . . . . . . |
| . | . 0 . . . . . | . . . . . . . |
| . 0 . . . > . - - - - - - - - - . |
| . . 0 . . 0 . | | . |
- - 0 . 0 - - - - - - - - - - - - + |
| . . . ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ . |
- - - - - - - - - - - - - - - - - -
Label the Boulders
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . A | . . | . N . . | . . . . . . . |
| . . | . G | . . | . | . . . . . . . |
| . . . . . | L . | . | . . . < . . . |
- - B | E . | . . | . | . . . . . . . |
| . | . . K . P | . | . . . . . . . |
| . | . H . . . . . | . . . . . . . |
| . C . . . > . - - - - - - - - - . |
| . . F . . M . | | . |
- - D . J - - - - - - - - - - - - + |
| . . . ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ . |
- - - - - - - - - - - - - - - - - -

Step One: Start
  1. Push J one tile south and take it.
  2. Take H the same way, then G.
  3. Push F two tiles north.
  4. Push C two tiles east.
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . A | . . | . N . . | . . . . . . . |
| . . | . . | . . | . | . . . . . . . |
| . . . . . | L . | . | . . . < . . . |
- - B | E . | . . | . | . . . . . . . |
| . | . . K . P | . | . . . . . . . |
| . | F . . . . . . | . . . . . . . |
| . . . C . > . - - - - - - - - - . |
| . . . . . M . | | . |
- - D . . - - - - - - - - - - - - + |
| . . . . . . ^ ^ ^ ^ ^ ^ ^ ^ ^ . |
- - - - - - - - - - - - - - - - - -
Step Two: Clear the Bottom
  1. Push C south and take it.
  2. Push D one north, two east.
  3. Push D south and take it.
  4. Push M two west and take it.
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . A | . . | . N . . | . . . . . . . |
| . . | . . | . . | . | . . . . . . . |
| . . . . . | L . | . | . . . < . . . |
- - B | E . | . . | . | . . . . . . . |
| . | . . K . P | . | . . . . . . . |
| . | F . . . . . . | . . . . . . . |
| . . . . . > . - - - - - - - - - . |
| . . . . . . . | | . |
- - . . . - - - - - - - - - - - - + |
| . . . . . . . . . ^ ^ ^ ^ ^ ^ . |
- - - - - - - - - - - - - - - - - -
Step Three: The Middle
  1. Push F south and take it.
  2. Take E the same way as F.
  3. Push K west, then take it the same way.
  4. Take P the same way as K.
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . A | . . | . N . . | . . . . . . . |
| . . | . . | . . | . | . . . . . . . |
| . . . . . | L . | . | . . . < . . . |
- - B | . . | . . | . | . . . . . . . |
| . | . . . . . | . | . . . . . . . |
| . | . . . . . . . | . . . . . . . |
| . . . . . > . - - - - - - - - - . |
| . . . . . . . | | . |
- - . . . - - - - - - - - - - - - + |
| . . . . . . . . . . . . . ^ ^ . |
- - - - - - - - - - - - - - - - - -
Step Four: Finish Up
  1. Nudge L and N one tile south to see under.
  2. Push A two south, three east. Take it.
  3. Push B two north, then one back south.
  4. Take B the same way as A.
- - - - - - - - - - - - - - - - - - - -
| . . | . . . . . | . | . . . . . . . |
| . . | . . | . . . . | . . . . . . . |
| . . | . . | . N | . | . . . . . . . |
| . . . . . | . . | . | . . . < . . . |
- - . | . . | L . | . | . . . . . . . |
| . | . . . . . | . | . . . . . . . |
| . | . . . . . . . | . . . . . . . |
| . . . . . > . - - - - - - - - - . |
| . . . . . . . | | . |
- - . . . - - - - - - - - - - - - + |
| . . . . . . . . . . . . . . . . |
- - - - - - - - - - - - - - - - - -