Himynameischair said:
Kojima was not in the KA credits, and in the BD booklet, Oshiyama specifies that he really wanted to have Kojima do some Key Animation on the OP, but at the time, he wasn't available.

Kojima even mentioned how he wanted to do Key Animation on the OP, but in the end, he said he just did supervision.

however in the bookelet, Oshiyama did ask Kojima: if he could have animated one cut, which one he would have picked.

Kojima mentions how if he could have done one scene, this would have been the scene he wanted to do the most.

for clarity and confirmation here's the comments in the BD booklet where this is mentioned: https://imgur.com/a/McXcBrq