
Achievements
To get all the extra rewards in the game, you need to do more than just get the required points on each stage. Most of the special rewards will unlock as you play and reach the target score. However, there are some rewards that need specific actions. You probably won’t miss these if you play through the game normally.
Just One More Level…
Complete 8 levels in a row.
Technically missable if you never complete 8 levels in one sitting, but very unlikely. Also I would guess that this can be done retroactively (completing levels in sequence that have already been completed previously), but have not tested it.
Practice Makes Perfect
Replay the same level to reach the best score.
I suppose this might be missable if you manage to complete every level to target score.
With a Little Help…
Ask PAL for help 10 times.
Simply click the [?] button 10 times when it appears. This doesn’t need to be done all at once, but it can be.

Note that the achievement will pop only when the current level is completed, not before. You can do it all on one level, but you’ll have to keep count on your own.
Infinite Loop
Replay the first level after finishing the game.
Level Solutions – Area 1
1-1 (7)

1-2 (6)

1-3 (14)

1-4 (10)

1-5 (14)

1-6 (14)

1-7 (13)

1-8 (13)

1-9 (14)

Level Solutions – Area 2
2-1 (13)

2-2 (15)

2-3 (20)

2-4 (11)

2-5 (12)

2-6 (17)

2-7 (14)

2-8 (13)

2-9 (21)

Level Solutions – Area 3
3-1 (18)

3-2 (19)

3-3 (18)

3-4 (16)

3-5 (18)

3-6 (20)

3-7 (21)

3-8 (21)

Level Solutions – Area 4
4-1 (19)

4-2 (20)

4-3 (18)

4-4 (20)

4-5 (21)

4-6 (16)

4-7 (21)

4-8 (17)

4-9 (20)

Level Solutions – Area 5
5-1 (18)

5-2 (18)

5-3 (29)

5-4 (22)

5-5 (21)

5-6 (24)

5-7 (22)

5-8 (26)

Level Solutions – Area 6
6-1 (21)

6-2 (23)

6-3 (23)

it is possible to insert a step in an already established program, or must it all be typed over again
5-2, F1 should be forward->left->forward->right, F2 should be F1->F1->Forward->Download->F1->Right->Upload, main function should be F2->F2->F1->F1. 15 moves.
For 4-6, use F2 instead of 2 forwards in F1. 15 moves.