I think you have lost track of what you were arguing about....
However, the chain chomp absolutely is integral to links awakening, you literally cannot progress through the game without its gameplay mechanics.
And past that, piranha plants, goombas, and even kirby were cameo enemies in links awakening.
Which is the exact same situation you are talking about.
And finally, metroids are also enemies in the kid icarus series.
Chain Chomp and Metroids in Kid Icarus are the first actual examples of Integral game content you have cited. Which is exactly what I was arguing all along. Therefore I concede the point.












