These game changes are available as “markers” in the Kraken v5 API:
For example:
https://api.twitch.tv/kraken/videos/155419377/markers?api_version=5
{
"vod_id": "155419377",
"markers": {
"game_changes": [
{
"time": 3427, // Seconds
"label": "PLAYERUNKNOWN'S BATTLEGROUNDS",
"thumbnail": {
"sheet_url": "https://static-cdn.jtvnw.net/ttv-boxart/PLAYERUNKNOWN%27S%20BATTLEGROUNDS-138x190.jpg",
"sheet_rows": 1,
"sheet_cols": 1,
"height": 190,
"width": 138,
"row": 0,
"column": 0
}
}
]
}
}