A very quick DIY project on one of the great joysticks from Monster Joysticks.
https://monsterjoysticks.com
These guys sell a range of retro compatible joysticks, either as assembled joysticks or as parts for self assembly in plywood or plastic. You can order basic components or with sanwa bits.
They have 2 buttons, one of which can be mapped to “up” with a switch in the back.
I bought the plywood version. The kits are fully reversible, so you don’t have to join the collective delusion that having the joystick in the left hand for right handed players is a good idea.
Quick staining in teak, Atari sticker, varnish….and the 2600 has a new friend.