What does スパゲッティ look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add スパゲッティ?

HTC first drew スパゲッティ in Sense 7, released 2015年3月30日.

HTC Corporation has shipped 2 versions of スパゲッティ. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn スパゲッティ 2 times. Every revision HTC has shipped is below, newest first.

What does スパゲッティ look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add スパゲッティ?: HTC first drew スパゲッティ in Sense 7, released 2015年3月30日.
How many times has HTC redrawn スパゲッティ?: HTC Corporation has shipped 2 versions of スパゲッティ. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.