Totem skip is the trick that allows you to feed only one red coin thing (?) to the totem in Sloth Village 02 and still get the Nut, saving a lot of time. Usually you have to feed 6 of them.

The tricky part about it is to get a jump off of vines. However there is a consistent lineup that makes the jumps work every time.

You have to feed one red coin thing (?) to the Totem, then you can go behind it and climb up the first vine until you reach that spot.

Then you need to position Scrat like shown on the picture, with his lower foot parallel to the shadow on the leaf:

Then hold right and do a double jump to kinda circle around the Totem. Scrat should grab the next vine on second jump. Climb up to that spot:

Then line up Scrat to get his lower foot texture to continue into shadow like this:

Hold right, do a double jump and try to grab the last vine. This double jump is a bit tricky. Scrat does not grab the vine in some situations if you hold forward+left. I do it like this: Hold Right -> Double Jump -> On the Second jump start to hold only Forward -> Left only. After you made it, just grab the Nut.

P.S. All 4 pictures have Scrat lined up. I drew red lines on second ones to get a better look on what you should focus on.

Ice Age 2 runs at 1024x768 by default, however it is possible to force it to 1920x1080 (or any other widescreen resolution) by using custom patch.

The program used to patch the game is called UniWS and you can get it here: https://www.wsgf.org/article/universal-widescreen-uniws-patcher

It does not support Ice Age 2 by default, but there is a custom patch that you can use with this program to make it work: https://mega.nz/file/R3p3lYCY#-OHlG-KccmdzkNFypFAMwMM_hdsV82aOyeqs31BR55Y (Fresh executable is included in case something goes wrong)

You have to replace patches.ini file in the UniWS folder or just add the Ice Age 2 script to existing file. You can also edit the script to make different resolutions, but I did not test it so it might not work properly.

After patching you have to set the game resolution to 1024x768 in the settings menu.

I did not notice any downsides of patching the game except different UI position. But 1080p makes lineups for some tricks easier.