Nice variety of minigames! My only gripe here is each of them was a bit too long. You could cut the time by about 40% and the games would not have time to get "stale". The games themselves had a bit uneven quality. The first one was just basic platforming, but the one with the bees had a nice rhythm to it.
The presentation could use more work. Some more details would help. The retro music isn't bad, but maybe having more music tracks would give it some more variety.
Over all- this has some potential, but needs some polish. Keep it up!