Skater's Solstice

The solutions for all 50 levels are below.
Please bear in mind, that on some of the levels, you will have to avoid spikes, so please pay attention and time your movements. I have designed these solutions so that they pick up all three stars in each level so that this walkthrough is future-proofed for any star-collecting achievements that EastAsiaSoft (the publisher) may add in upcoming title updates.

1: RULDR
2: URDL
3: LULRD
4: LDURD R
5: LURDL DRULU RD
6: DRURL ULUDR UR
7: RULUD RDLUL
8: LURUR DLDLU RDLUR DLDL
9: URDLD RULUL DRU
10: LDRUR DLURD RULD
11: DRUDL URDL
12: RLURU DLDRU R
13: RLULD URDRD LULRD
14: LULUR DLDRU RULUR DLULD LDRUR ULDR
15: LDLUR URULD LURUL DLRDL
16: ULDRD RURDR DLULD RDRUR DLDRU LDRU
17: DRURD LULDL ULDRD RU
18: UDLDR DLURD L
19: RLURL DRULU RDLUR D
20: URDLU RDURD RULDR ULULD RU
21: URDLU RD
22: ULDUR DLUDR U
23: LRDUR DL
24: DLULR DLURD LULDL URDLU RU
25: DLURD RUDLU LDR
26: URLDL URDRL URDLD UR
27: DLURD RUDLU LDRDL ULDRU R
28: RULDL UDRUL ULDRD RULUR DL
29: ULDLR URUDL D
30: LULDR ULDRU RDLU
31: URDRL DRULU RDLUL UD
32: LDURD RURDL URDLR ULDRU RL
33: RDRUL DRULD RULDR ULDRD RULDR DL
34: DURLD LURUL DR
35: DLRUL DLRUL ULDRL
36: LURDL RDLDR LURDL
37: RULDR ULDLU RURLU
38: LURDR URURD LDRUL ULDRU LDRDL
39: DLURD RURDL URDLU RLDLU
40: RULDR ULDRU LDLUR DURDR UDLUL DRUL
41: ULDRU LDLUL DRURD LDLUR ULDLD RURU
42: ULURD RULDR DLDRL ULUD
43: DLRUL DLULD RULDL ULDRU LDLUR URD
44: DRULU RDLDR LURDL URDLU RD
45: RULDL DURDL ULDRU
46: ULDUR DLURD RDLUL RULUR ULDRD LD
47: LDLUR DLULD RDRUL D
48: LUDRL DRULD RURUL
49: DLURU DLDRU LDLUR DRULU LD
50: RDRUD LULDU RDLUL URDRU L