Yeah you can keep playing. Game state is saved in a cookie, so you can even close the page and come back.
I have optimised the game for mobile and it's possible to add it to the home screen since it's a PWA. I have considered making an app but haven't really tried that before.
I have no experience with web gaming portals but I think would be open to it.
1. I actually agree, but I think it might be a bit confusing for beginners. I've considered speeding up animations for combos, or adding a setting for animation speed.
2. I've thought about this a lot but I think it's too late to implement now. My wife and I are already competing for highscores, so if I change it now I'll have a grumpy wife!
3. I've only played bejeweled, so I don't haven't seen this mechanic in practice. Might be fun to implement but it would have to be a different game mode.
I discovered you'd added the sliding while I was in the middle of a game and muscle memory made me slide - I did a little double take and then test slide on the next one!
I've now done the Add to Home Screen thing on my iPhone - will definitely be playing this a lot. I've managed to get up to 46k now, but I think I need to rethink my strategies as I'm playing it like a mix of Threes and Zoo Keeper - there's actually more to think about here than on those.
As a side note, I once came up with this exact game concept in a dream but never got around to trying it out to see if it would be fun. Glad you did, because it's definitely fun.
Thank you for the feedback! The hitboxes are already quite big on mobile (only a 2px gap). I have implemented swiping though, let me know how it feels :)