Larry Koopa. One out of the 7 koopalings from the Mario universe.

Characteristics: Larry is the most competitive out of the koopalings, and frequently tries to be the best villain he can possibly be.

Voice and Impression: Try giving Larry a voice that's a mix of his voice samples from the New Super Mario Bros Series and Stephanie Nadolny voice of Kid Goku voice from the Funimation dub of the original Dragon Ball anime. 

Example of Stephanie Nadolny's Kid Goku Voice: https://youtu.be/iNd1TrKaF80?t=228  (3:48 to 4:17)