This papercraft is Buzzy Beetle (simply Buzzy), turtle-like creatures with hard, outer shells that are often blue, from the video game New Super Mario Bros., the paper model was created by sabidiet.
Buzzy Beetles will hide in their shells if jumped on, and, like a Koopa Shell, can be kicked to eliminate more enemies. The shell of the Buzzy Beetle is strong enough to resist fireballs, and as such, they cannot be defeated by fire. In a way, they are the polar opposite of the Spinies; enemies who are immune to jumps, but vulnerable to fireballs.
You can download the papercraft model here: New Super Mario Bros. - Buzzy Beetle Free Papercraft Download
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