First run attempt. In hindsight I should have grinded coins from a chest (at 2-2 at the very end there is a chest which you can open repeatedly by dying after looting it and then, instead of 'Resurrect' click 'Shop' and exit shop) and bought a shotgun early on. Reams of time to save but I won't do another run for the moment. The game is not ideally suited to running as the bosses in particular are too easy given the free respawns.