for the ladder and the enemy the download has not been available
The resources have been uploaded a while ago on GameDev.tv. I hope it’s working for you now.
The ladder png can be found in the resources of lecture “Climb Ladder”.
When I click that link under Resources for the enemy sprite it does not download the sprite, it opens the same site/lesson page in a new tab. This was the same experience I had for the ladder in an earlier lesson. The only workaround I found was to right-click the vary large image shown under the list of Resources and save it. This image is scaled extremely large however and this doesn’t feel like it was intended that way. I had to set my pixels per unit to something like 2600 in order for it to fit in the tile map.
I had one of these pop up before on a different resource so there may be a problem with some of the resource links linking back to the lecture instead of a file.
If you notice any please do let me know and i can get @Joshua_Ison to take a look and reupload or relink if needed.
Thanks