Can you beat Geometry Dash without Portals?

Is it possible to beat the Geometry Dash Main Levels without portals? -- Get 10% OFF on Soft Skeletal Plushies! (ONLY IN APRIL/MAY) -- https://squishifulties.com -- Get early access to videos like this --    / @tutorialismic   -- Join our community (Creating positions are open - 16+) --   / discord   Timestamps: 00:00 Intro 00:10 Stereo Madness 00:45 Back on Track 01:35 Polargeist 03:13 Dry Out 04:18 Base After Base 05:07 Cant Let Go 05:59 Jumper 06:14 Time Machine 06:28 Cycles 06:35 xStep 06:43 Clutterfunk 07:02 Theory of Everything 07:15 Electroman Adventures 07:30 Clubstep 07:50 Electrodynamix 07:59 Hexagon Force 08:16 Blast Processing 08:26 Theory of Everything 2 08:38 Geometrical Dominator 09:10 Deadlocked 09:17 Fingerdash 09:56 Dash