O_O

Through chaining together various glitches in Donkey Kong 64, it is possible for any Kong to enter any transformation barrel and as such use any other Kong's abilities in this manner.

The footage shows Tiny Kong, who is normally only able to use Mini-Monkey to shrink in size, using three other abilities instead: Diddy Kong's Rocketbarrel Boost, Chunky Kong's Hunky Chunky, and Lanky Kong's OrangSprint.

Note that while some animation irregularities occur due to Tiny Kong's model not matching up perfectly with the models of the intended Kongs, there are no gameplay issues at all and she (as well as every other Kong) can use all abilities the same way the respective intended Kong can.

Source: GloriousLiar