Mr. Ripovski

Mr. Ripovski is a character in Banjo-Kazooie: Grunty's Revenge. Unlike other non-player characters in the game, Mr. Ripovski appears in several of the game's levels in various guises, such as a scavenger in Breegull Beach and as a sideshow host in Spiller's Harbor. Each time he appears, he sets Banjo and Kazooie on a task that will reward the pair with a Jiggy each time. Banjo can replay the mini-games only after he collects enough gold coins on the slide (the mini-game you play during the credits) and then he must go to the N. Kreditz Arcade machine in Spillerston.

He also makes a cameo appearance in Banjo-Pilot where he can be found at the winning ceremony, along with many other characters from Banjo-Kazooie: Grunty's Revenge.

The five silver coins can be found here:
 * Sout-east corner of the Tip-tup Suite.

Trivia

 * His name might be a play on the word "rip-off".