Shooting as you approach an edge allows you to make larger jumps. 'Get damage' achievements need deaths, not damage.
Cheese method
Click Play, then press F12 to open the console and enter the following:
var r = cr_getC2Runtime();
Keep running this code until you have all the achievements for opening levels:
var next = r.layouts_by_index[r.layouts_by_index.indexOf(r.running_layout) + 1];
if (next) { r.changelayout = next; }Then run this to get all the count achievements immediately:
r.all_global_vars[2].data=30;
r.all_global_vars[3].data=20;
r.all_global_vars[4].data=30;
r.all_global_vars[5].data=30;
r.all_global_vars[6].data=150;
r.all_global_vars[7].data=50;
Lastly, press Escape and click Exit for the final working achievement.
Cheese strategy provided by B
Bobogoobo with help from T
turtle and HD
Hi Dog; original curation by S
Sellyme. 
