Bowser Jr. artwork is derived from Nintendo game imagery. Nintendo retains
the original character/art rights. Nintendo Unity's public original-gameplay
recording was inspected through its credited playback copy:
https://www.youtube.com/watch?v=qa9CTjBgSYU
https://www.bilibili.com/video/BV1c6421f7ue/

This package's five palette-indexed frames reconstruct visible normal SMB1
Bowser Jr. silhouettes from a lossy 640x360 gameplay decode. They are not an
original game sprite rip, exact native palette, or recovered animation table.
Two independently sampled normal poses differ visibly, but native walk-cycle
identity and cadence remain unverified. The small circular fireball is an
authored pixel adaptation of its observed shape. Native 22x22 and 16x16 frame
dimensions are preserved within one-pixel authored margins by the common
editor/live/offline/Canvas renderer. Player contact uses actual visible opaque
pixels, not transparent collision-envelope corners.
Collision geometry, motion, timers and frame selection are explicit author
fits. This notice does not expand any original-game or recording license.
