An A+ solution for Waypoints.
(Note: yellow areas are Suspicious Stones, pink areas are illusions, red blocks are collapsing walls and blue blocks are passages opened by buttons.)
1-4: Hack through the copper block, destroy the mixed ores block, bust the Suspicious Stones and walk into the illusion tunnel to the button at 4. Press it and the room behind block A will be revealed.
5-7: Destroy the grey wall at 5, dropping the carved granite block on the glass and the werewolf. Pick up the silver key, press the button at 7. That will open the gate and let the water into some illusion tunnels below.
8-11: Make your way to the silver door at 8, dodging the arrows. Unlock it, press the button at 9. Gate B opens, go to the button at 10 and press it. This will open the way to an illusion tunnel at C. Get back to 11, dodging arrows, and drill through the colored gem block.
12-17: Get ready to kill the spider (13) behind the collapsing block at 12. You can lure the spider to the arrow traps above and return to push the button at 14 and clear the blocks 15 to 17. The button reveals the area between the D blocks.
18-23: Torch the slime, take advantage of the arrow trap nearby to deanimate the skeletons at 19 and 20. Take the golden key and clear blocks 22 and 23. Let the water reach the water button at the end of the illusion tunnel.
24-26. Avoid the arrows until you stand next to 24. You'll be out of range then, and you can drop the carved granite blocks held by 24 and 25. Open the chest at 26.