The dynamic midfielder scored the only goal of the game against leaders Tottenham at Salford City Stadium to lift the Reds above Liverpool into second place in the table with the top three progressing to the knockout stages of the inaugural competition.
With the Reserves still involved in the Manchester Senior Cup and Lancashire Senior Cup, Tunnicliffe is keen to repeat last term's clean sweep of trophies at this level.
"I think we have set a marker for the rest of the year," he told MUTV. "If we get to the final, it looks like we could play Tottenham and we've proved we can beat them.
"Obviously, we've played them four times now this year and we've both won two each so you can't say they're better than us, they've just picked up more points elsewhere, although I'm not taking anything away from them because that's why they are top of the league and they're a very good team.
"We want to win everything, whatever tournament we are in - the Lancashire Senior Cup, Manchester Senior Cup and to be crowned the best team in England is what we're striving for. We don't want to go out at an earlier stage and then have nothing to play for - we want to keep going until the end."
Tunnicliffe's second-half strike proved decisive and his celebration mirrored that of Jesse Lingard in the previous match against Southampton, when the winger admitted he was rubbing his head in reference to Tunnicliffe's new mohawk haircut.